Out of Florida: mtDNA reveals patterns of migration and pleistocene range expansion of the green anole lizard (Anolis carolinensis)

Shane C. Campbell-Staton, Rachel M. Goodman, Niclas Backström, Scott V. Edwards, Jonathan B. Losos, Jason J. Kolbe

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Anolis carolinensis is an emerging model species and the sole member of its genus native to the United States. Considerable morphological and physiological variation has been described in the species, and the recent sequencing of its genome makes it an attractive system for studies of genome variation. To inform future studies of molecular and phenotypic variation within A. carolinensis, a rigorous account of intraspecific population structure and relatedness is needed. Here, we present the most extensive phylogeographic study of this species to date. Phylogenetic analyses of mitochondrial DNA sequence data support the previous hypothesis of a western Cuban origin of the species. We found five well-supported, geographically distinct mitochondrial haplotype clades throughout the southeastern United States. Most Florida populations fall into one of three divergent clades, whereas the vast majority of populations outside Florida belong to a single, shallowly diverged clade. Genetic boundaries do not correspond to major rivers, but may reflect effects of Pleistocene glaciation events and the Appalachian Mountains on migration and expansion of the species. Phylogeographic signal should be examined using nuclear loci to complement these findings.

Original languageEnglish (US)
Pages (from-to)2274-2284
Number of pages11
JournalEcology and Evolution
Volume2
Issue number9
DOIs
StatePublished - Sep 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

Keywords

  • Glaciation
  • Lizards
  • Mitochondrial variation
  • North america
  • Phylogeography

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